The First Debit Card for AI Agents

Your AI needs to spend money to get things done. But you shouldn't trust it with your bank account. Issue virtual cards with strict, unbreakable logic gates—so your agent can work, but it can't go rogue.

Issue an Agent Card Learn How It Works
Your AI Agent
Tether Card
Logic Gates
✓ Flight < $500?
✓ Airline == Delta?

Agents Hallucinate.
Don't Let Them Spend Real Money.

We've all seen AI get confused. When an agent gets stuck in a loop, it burns tokens. If it has a credit card, it could burn your savings.

The Wallet for Robots

  1. Assign

    Create a unique virtual card for a specific agent (e.g., "Travel Agent," "Research Bot," "Shopping Assistant").

  2. Constrain

    Set the rules in plain English: "You can only spend at Amazon.com, max $50 per day."

  3. Execute

    The agent uses the card number. Our TEE intercepts the charge, runs your rules, and only unlocks the funds if the agent obeyed your commands.

Key Features

Merchant Locking

Stay in Your Lane.

Your 'Research Agent' should only be paying for JSTOR or OpenAI API credits. If it tries to buy a PlayStation on Amazon, the card declines automatically.

Loop Protection

Kill Switch Included.

If an agent tries to make the same $5 transaction 10 times in one minute (a classic AI loop), our logic engine freezes the card instantly.

Human-in-the-Loop

Ask for Permission.

For charges over a certain amount (e.g., $100), the agent can 'request approval.' You get a push notification, tap 'Approve,' and the agent proceeds.

Watch the Logic Work

Enterprise-Grade Security

Tether Cards is built on industry-standard security protocols and compliance frameworks to protect your funds and data.

Bank-Level Encryption

AES-256 encryption for all sensitive data, meeting financial industry standards.

PCI DSS Compliant

Payment Card Industry Data Security Standard certified infrastructure.

TEE Security

Hardware-isolated Trusted Execution Environment for payment processing.

SOC 2 Type II

Audited security controls and operational procedures (in progress).

Hardware-Level Guardrails

Your funding source (your real credit card) is locked inside a Trusted Execution Environment (TEE). The AI agent never sees your real card number. The merchant never sees your real card number. Only the logic controls the money.

Frequently Asked Questions

How does Tether Cards prevent AI agents from overspending?

Each virtual card is governed by programmable spending rules you define in plain English. Our TEE (Trusted Execution Environment) intercepts every transaction and validates it against your rules before releasing funds. If an agent attempts a transaction that violates your rules—wrong merchant, over budget, or suspicious pattern—the card automatically declines.

What is a Trusted Execution Environment (TEE)?

A TEE is a secure, isolated area within a processor that protects code and data from tampering. Your real payment credentials are encrypted and locked inside the TEE, where even we cannot access them. Only the logic rules you define can authorize fund transfers, ensuring complete security and transparency.

Can I set different spending limits for different AI agents?

Yes! Each virtual card can have completely different rules. Your travel agent might have a $500 per transaction limit at airline websites, while your research agent has a $50 daily budget restricted to academic databases. You create as many cards as you need, each with custom policies.

What happens if an agent gets stuck in a loop?

Our loop detection algorithm automatically identifies repetitive transaction patterns (e.g., same amount, same merchant, rapid succession). When detected, the card is instantly frozen and you receive an alert. You can unfreeze it after investigating, preventing runaway spending.

How quickly can I issue a new agent card?

Virtual cards are issued instantly. Simply define your spending rules, name your agent, and you'll receive card credentials immediately. You can create, pause, or revoke cards at any time through your dashboard.

Do agents see my real credit card information?

Never. Your AI agents only see the virtual card number assigned to them. Your real funding source (credit card or bank account) remains encrypted in the TEE. Even merchants never see your real card—they only process the virtual card transaction.

Start Issuing Cards